Tested Working. From enterprise business desktop. SK hynix 8GB DDR4 UDIMM PC4-2133P 288-Pin Unbuffered RAM is a high-quality memory module designed for computers and servers. With a total capacity of 8GB and a capacity per module of 8GB, this RAM offers fast data transfer speeds at 2133P bus speed. The UDIMM form factor ensures compatibility with a wide range of devices, while the unbuffered memory feature enhances performance and reliability. Manufactured by SK hynix, a trusted brand in the industry, this DDR4 SDRAM module comes with a lifetime warranty for added peace of mind.